A wise-cracking private detective's honeymoon is interrupted by a kidnapping case.
| Actor | Role |
|---|---|
 Chester MorrisDetective Humphrey Campbell | Detective Humphrey Campbell |
 Jean ParkerMrs. Louise Campbell | Mrs. Louise Campbell |
 Rose HobartMrs. Marion West | Mrs. Marion West |
 Dick PurcellRed Harris | Red Harris |
 Astrid AllwynGypsy Toland | Gypsy Toland |
 Rod CameronTom Reed | Tom Reed |
 Lorin RakerClyde Copley | Clyde Copley |
 Billie SewardRose Madden | Rose Madden |
| GGeorge WattsOscar Flack | Oscar Flack |
 James KirkwoodWarren Benedict | Warren Benedict |
 Robert MiddlemassPolice Chief Bates | Police Chief Bates |
 Ralph SanfordOfficer Gimble | Officer Gimble |
 Grant WithersHarry Belding | Harry Belding |
 George J. LewisDave Paulson | Dave Paulson |
 Milburn StoneFBI Agent | FBI Agent |
 Keye LukeSeverino | Severino |
 Jack NortonBartender at The Nugget Room | Bartender at The Nugget Room |